Chuck and vise for engraving-machines.



Patented Oct. Hi, I900.

C. W. PASHLEY.,

CHUCK AND VISE FOR ENGRAVING MACHINES.

(Application filed Apr. 24, 1899.)

'3 slfeat sheet I.

(No Model.)

No. 659,761. v Patented Oct. I6, 1900. c. w. PASHLEY.

CHUCK AND VISE FOR ENGRAVING MACHINES.

(Application filed Apr. 24, 1899.)

3 Sheets-Sheet 2.

(No Model.)

A AW w ti l No. 659,76i. Patented Oct. l6, I900.

G. W. PASHLEY.

CHUCK AND VISE FOR ENGRAVINGMAGHINES.

(Application filed Apr. 24, 1899.)

3 Sheets-Sheet 3.

(No Model.)

Mieww. A Inrenfoh fiwkwMPM/Jg.

M ZWW m: NORRIS PETERS co. rmm o-umo.v msumurou, n. c.

with TATES CHARLES WALTER PASHLEY, OF BROADHEATH, ENGLAND, ASSIGNOR TO THE LINOTYPE COMPANY, LIMITED, "OF LONDON, ENGLAND.

CHUCK AND VISE FOR ENGRAVING-MA OHINES.

SPECIFICATION forming part of Letters Patent No. 659,761, dated October 16, 1900.

Application filed April 24, 1899. Serial No. 714,286. (No model.)

To ctl w/tmn it may concern:

Be it known that 1, CHARLES WALTER PASH- LEY, of Broadheath, in the county of Chester, England, have invented certain new and useful Improvements in Chucks and Vises for Holding Matrix-Blanks in an Engraving-Machine; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

The present invention relates to improve-' ments in chucks and vises for holding a series of matrix blanks in an engraving machine during the process of the formative cavities being cut therein. The particular engravingmachine for which the said improvements are more particularly adapted is the one described in the specification of British Letters Patent No. 11,938 of 1895.

The object of the present invention is to make the chuck automatically adjustable for variations in thicknesses of the matrix-blanks.

Referring to the accompanying figures, which fully illustrate the said invention, Figure 1 is a front elevation of the improved chuck and the vise which holds it; Fig. 2, a plan corresponding with Fig. 1; Fig. 3, an end elevation from the right hand of Figs. 1 and 2; Fig. 4, an end elevation from the left hand of Figs. 1 and 2; Fig. 5, a longitudinal vertical section taken on the line 5 5 of Fig. 6; Fig. 6, a plan corresponding with Fig. 5; Fig. 7, a transverse vertical section taken on line 7 7 of Figs. 5 and 6; Fig. 8, a detail plan of part of the top of the visebody; Figs. 9 and 10, detail sections on lines 9 9 and 10 10,

respectively, of Fig. 8; Fig. 11, a front elevation, after certain parts have been broken away, of the chuck; Fig. 12, a plan corresponding with Fig. 11; Fig. 13, a transverse vertical section on line 13 13 of Figs. 11 and 12, and Fig. 14 a transverse vertical section on line 14 14 of Figs. 11 and 12.

Y isa matrix-blank. It is set in the improved chuck partly by the side edge W, in

which the formative cavity y is to be cut, and

partly by the bottom shouldery, next to that side edge. For a full description of the matrices produced by cutting the formative cavities y in the blanks Y reference may be made to the specification of Letters Patent of the United States No. 436,532, dated September 16, 1890. Each matrix-blank Y of the series which the improved chuck is capable of containing at one time is treated in the same way, so that a description of the chuck and vise in respect of one blank Y will be a description of it in its entirety. This chuck is shown in detail in Figs. 11 to 14.

1 is a flat plate having as many openings 2 formed in it as there are matrix-blanks Y to be chucked at once. The sides 3 of these openings are beveled, as shown in Figs. 2 and 12.

4 is a plate against which a blank Y is clamped. It hangs vertically from the plate 1 on the left hand of the opening 2 and has a sliding motion lengthwise of the said plate by means of a horizontal continuation of it, 0 4, having dovetailed side edges engaging in a double-V groove in the under side of the plate 1. To prevent a plate 4 becoming detached from the plate 1, there is a short slot 6 in the continuation 4 into which projects a screwed stud 7, fast to the plate 1.

8 is an end piece held fast to the end of the plate 1 by steady-pins 8 and screws 8, as shown in Figs. 3 and 4. Each piece 8 has a rearwardly-projecting declined surface 9 and projects to the frontof the plate 1, as clearly shown in Figs. 2 and 12.

10 is a rod carried by the end pieces 8 8 at a short distance in front of the plate 1 and parallel with it.

11 is a plate normally standing m's a ms of the plate 4. It swings on the rod 10 by a socket 12. 13 is a thumb-piece fast to the opposite side of the said socket, the thumb-piece 13, socket 12, and plate 11 forming a lever having its fulcrum in the rod 10.

14 is a spring surrounding the rod 10 on each side of a socket 12 to return the said lever into its normal position with reference to the respective plate 4.

15 is a washer on the rod 10 between each spring 14 and the respective socket 12, and 16 is a filling up collar between the end springs 14 and the respective end pieces 8.

17 is a bracket-stud projecting laterally I00 from the middle of the bottom edge of the plate 11 in the direction of the plate 4.

18 is a post fast to and projecting upward from the rear end of the plate 11, above the plate 1, and having a notch 19 in its rear edge, in which engages a detent 20, carried by the rear edge of the plate 1 when the matrix-blank Y is held between the plates 4 and 11, as shown in Fig. 13. A springrdetent 20 is fast on the end of a horizontal spring-bar 21, which is held to the plate 1 by a screw 22.

23 is a bar-spring depending from the rear edge of the plate 1, behind the place which a matrix-blank Y will occupy in the chuck. It-is held to the said plate 1 by a screw 24, passed through it and a packing-block 25 into that plate, as shown best in Figs. 12 and 14. The spring stands normally in a forwardly= bent position as far as the plate 4, as shown in Fig. 14.

The improved chuck made as above de-. scribed is held in the improved vise next described.

E is the reciprocating top block of the en? graving-machine described in the specification of the above-mentioned British Letters Patent No. 11,938 of 1895, to which the said viseis made fast by screws 57, 58 58 are alinewent-strips fast on the block E to assist the said screws in holding the vise always in the same position upon the said block.

26 26 are the vise end plates, held by screws 27 to the vise-body 28, as shown in Figs, 1 to 4.

29 is a stopping-post fast to each vise and plate 26, up to which the plate 1 of the improved chuck butts, the end pieces 8 8 thereof fitting just outside of the said posts 29 29, as shown in Fig. 2. The plate 1 is held up to the posts 29 29 by set-screws 30 30, work; ing in posts 31 31 on the end plates 26 26 and bearing on the respective declines 9 9.

32 32 are a pair of dovetailed strips fast 1 upon the top of the vise-body 28 and transverse thereof.

33 is a frame having a corresponding pair of dovetail strips 34 fast on its under side to shown in Figs. 1 and 5.

35 35 are side pieces along the sides of the frame 33 and fast to it.

36 is a double V groove along the inner face opposite to each other and of the same size. The inner faces of the said side pieces 35 are tapered at the same angle toward each other from front to rear.

37 37 are a pair of vise-jaws. Their opposite faces are parallel and at right angles with the length of both chuck and vise, while their outer faces are tapered to the same angle as the inner faces of the side pieces 35. The two jaws 37 are capable of being moved up to and away from each other by the respec-. tive frame 33. The vertical frame in which they would meet if they were moved up to each other is the one that intersects the blank Y intermediately of its two sides when that blank Y is in position between the two plates 4 and 11 of the improved chuck.

38 is a dovetail fast to and projecting from the tapered face of a jaw 37 and engaging in the groove 36 of the respective side piece 35.

39 is a slot across a strip 32, and 40 is a projection from the under side of each vise-jaw 37, passing downward through the frame 33 and engaging in the said slot. Thus the two pairs of strips 32 and 34 serve as a guide for the motion of a frame 33 to and fro across the vise-body 28. A pair of grooves 36 and dovetails 38 provide forthe motion of a frame 33 across the vise-body 28, moving the two visejaws 37 of a pair up to or away from each other,'and the engagement of the respective projections 40 in their slots 39 keeps the motion of the said jaws steadily alined with the length of the vise and chuck:

The chuck and vise are slrownas capable of containing a series of four blanks Y at one ti ine,and as the engravingmachine works from only one pattern say; an M all the blanks of that series would be of the same thickness. This identity in thicknessis,however, found in practice to be more normal than real. Variations in thickness of a greater or less degree are always present in a lot of blanks, and when a seriesbfl them is to be chucked and held in the vise at one time those va at e d t prevent e se a anks of the series being gripped with equal presj sures, in which case only the thickest one would e h d e dy and all he oth rs would be more or less unsteady. To provide for all the blanks of a series being gripped with an equal pressure and held equally steadily in the chiick and vise, I have adopted the fol- 1 lowing combination, which is shown in all its details in Figs. 5. and 7:

41 is a rack held to the under side of a frame 33, intermediate of its sides and parallel therewith, by screws 42 and steady-pins 43. Each rack; projects downward into a groove 41, situated between the strips 32 of a a. pai engage with the respective strips 32 32, as

44 is a spindle turn ng in bearings 45 in e two en p ece 2 46 is a longitudinal boref through the visebody 28, concentric with the spindle 44, and within which the latter and its 'addenda next of each side piece 35, the two grooves being described work. Additional bearing-surface for the spindle 44 is provided by a thrustcollar 47, fast on the spindle and turning in a special bearing in the right-hand end piece 26, and a series of collars 48, likewise fast on the said spindle and bearing against the surface of the bore 46.

49 is spur-pinion fast to a half-clutch 50, 1 05 o t e p nd e 44 and eng ging wi h a rack 51 is the corresponding half-clutch engaging with the spindle 42 by a slot 52 il the said half-clntch embracing a feather 53 on the spindle 44.

54 8 p a p ing P h ng f m a o ar 48 and against the half-clutch 51 to keep it engaged with its fellow half-clutch 50. The

spring 54 of the right-hand combination bears against the thrust-collar 47.

is a thumb-wheel fast on one projecting end of the spindle 44 for turning the latter, and 56 is a grip on the opposite end piece 26, adapted to grip the spindle end projecting beyond that end piece to hold it steady, as shown in Figs. 1, 4, and 5.

The action of the improved chuck and vise is as follows: The improved chuck. is taken off the improved vise and filled with blanks Y by pushing each of the latter, foot on, against a spring 23 until the shoulder 11 enters between the said spring 23 and the rear edge of the plate 1, as shown in Fig. 13. The respective plate 11 is then swung up on its fulcrum 12 by its handle 13 until the detent 20 engages in the notch 19 in the respective post 18, by which time the project-ion 17 on the plate 11 has come into contact with the then under edge of the blank Y and has forced its top edge g up to the under face of the plate 1. The chuck is then laid upon the vise in the position shown best in Figs. 2, 3, and 4 and fixed there by the set-screws 30. The spindle-grip 56 is now loose and the jaws 37 of each pair standing apart from each other, as they were set, to allow of the clutch being taken off the vise with the last lot of matrices in it. Each pair of plates 4 and 11, with a blank Y between them, hangs between the two jaws 37 of a pair. The spindle 44 is then turned by the thumb-wheel 55 in the direction indicated by the arrow in Figs. 1 and 3, thereby moving all the frames 32 and side pieces 35 from their then rearward position to the front. Each pair of side frames closes the two jaws 37 of the respective p'air toward each other and keeps on closing them until the pair of plates 11 and 4 and the blank Y between them are properly gripped, whereupon the half-clutch 51 disengages from its fellow half-clutch 50, because the respective spring 54 is more compressible than the said plates 1] and 4 and blank Y. The first blank Y to be properly gripped will be the thickest one of the series, and the respective clutch will be the first to disengage. The next-thinner blank will be the second one to be gripped properly, and so on until when the thinnest of the series is properly gripped between its respective pair of jaws 37 all the clutches will disengage as the spindle 44 is turned.

I claim- 1. The combination of chuck having pairs of plates adapted to hold matrix-blanks between them, a vise-block having frames movable transversely of it, visejaws standing outside the respective pairs of plates above mentioned and engaged by side plates on the said frames to move them up to and away from each other, mechanism for moving all the pairs of vise-jaws together, and a clutch to each pair adapted to disengage as soon as the respective pair of jaws is properly closed upon the pair of plates and matrix-blank between them.

2. The hereinbefore -described improved series matrix-chuck consisting of flat plate 1 having plates 4 depending therefrom, plates 11 pivoted upon a rod 10, spring-detents 21 and matrix-holding springs 23 and projections 17.

3. The hereinbefore described improved series vise consisting of vise-block 28, frames 33 having side pieces 35 fast thereupon and capable of to-and-fro motion transversely upon the saidblock in guides, a pair of visejaws capable of motion to and from each other in a direction at right angles with that of the motion of the frame, tapered grooves in the side pieces and dovetailed pieces in the vise-jaws engaging therein; a rack fast upon each frame, a spur-pinion engaging with each rack, a spindle carrying all the spur-pinions loose on it, a clutch for each pinion in the spindle, half fast to the respective pinion and half engaging loosely with the said spindle and a spring adapted to close the clutch and to allow the clutch to open when the visejaws are properly closed.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

CHARLES WALTER PASHLEY. Witnesses:

THOMAS TAYLOR, J OHN EDWARD STANLEY. 

